When to Plant Oregano in Port Washington, WI

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of getting a good idea when it's a good idea to plant oregano is to check out the USDA zone info for Port Washington.


Planting Calendar for Oregano

Frost tolerance for oregano: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Since oregano do well in moderate cold you can plant them just a bit earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant oregano
Possibly ok, but a risky time to plant oregano
Probably not a good time to plant oregano

The earliest that you can plant oregano in Port Washington is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant oregano and expect a good harvest is probably September. You probably don't want to wait any later than that or else your oregano may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your oregano indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Port Washington. It might get as low as -15°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Port Washington and it will vary from year to year. Since half of the time in Port Washington you get surprised by a frost after April 15 be ready to protect your oregano in the event of a surprise late frost.

USDA Zone Info for Port Washington

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Port Washington

You may be interested in your other planting guides for Port Washington.